SCT-7633 Adding com.snowflake.snowpark.Session.SessionBuilder.getOrCr…

…eate (#67)

* SCT-7633 Adding com.snowflake.snowpark.Session.SessionBuilder.GetOrCreate

* SCT-7633 Adding com.snowflake.snowpark.Session.SessionBuilder.GetOrCreate

* Updating java GetOrCreate test variable names

* Updating getOrCreate for java

* Solving scala failing test

src/main/java/com/snowflake/snowpark_java/SessionBuilder.java

@@ -70,4 +70,14 @@ public Session create() {
     this.builder.config("snowpark_enable_closure_cleaner", "never");
     return new Session(builder.create());
   }
+
+  /**
+   * Returns the existing session if already exists or create it if not.
+   *
+   * @return A {@code Session} object
+   * @since 1.10.0
+   */
+  public Session getOrCreate() {
+    return new Session(this.builder.getOrCreate());
+  }
 }

src/main/scala/com/snowflake/snowpark/Session.scala

@@ -1455,6 +1455,16 @@ object Session extends Logging {
       createInternal(None)
     }
 
+    /**
+     * Returns the existing session if already exists or create it if not.
+     *
+     * @return A [[Session]]
+     * @since 1.10.0
+     */
+    def getOrCreate: Session = {
+      Session.getActiveSession.getOrElse(create)
+    }
+
     private[snowpark] def createInternal(conn: Option[SnowflakeConnectionV1]): Session = {
       conn match {
         case Some(_) =>

src/test/java/com/snowflake/snowpark_test/JavaSessionSuite.java

@@ -81,6 +81,14 @@ public void flatten() {
         new Row[] {Row.create("1"), Row.create("2")});
   }
 
+  @Test
+  public void getOrCreate()
+  {
+    String expectedSessionInfo = getSession().getSessionInfo();
+    String actualSessionInfo = Session.builder().getOrCreate().getSessionInfo();
+    assert(actualSessionInfo.equals(expectedSessionInfo));
+  }
+
   @Test
   public void getSessionInfo() {
     String result = getSession().getSessionInfo();

src/test/scala/com/snowflake/snowpark_test/SessionSuite.scala

@@ -49,6 +49,12 @@ class SessionSuite extends SNTestBase {
     t2.run()
   }
 
+  test("Test for get or create session") {
+    val session1 = Session.builder.getOrCreate
+    val session2 = Session.builder.getOrCreate
+    assert(session1 == session2)
+  }
+
   test("Test for invalid configs") {
     val badSessionBuilder = Session.builder
       .configFile(defaultProfile)